28 May 1993 Transurethral optical laser knife and probe director for lateral firing laser probes
Author Affiliations +
Proceedings Volume 1879, Lasers in Urology, Gynecology, and General Surgery; (1993); doi: 10.1117/12.146227
Event: OE/LASE'93: Optics, Electro-Optics, and Laser Applications in Scienceand Engineering, 1993, Los Angeles, CA, United States
Abstract
Laser energy has been used by many for transurethral incision of small, obstructive prostates, vesical neck contractures, and urethral strictures. The customary techniques of moving the tip of the laser fiber through a cystoscope with a conventional laser guide, almost tangentially to the tissue to be incised, or drilling radially arranged holes in the scar, or both, have been cumbersome and imprecise. To provide exact control of the laser fiber and precise delivery of laser energy, a new guide was devised. It conducts the quartz fiber through the sheath and along the lens of an optical urethrotome. The tip of the quartz fiber contacts the tissue at an angle of 20 degree(s). KTP/532 laser energy is used to perform internal urethrotomy for urethral stricture, transurethral incision of postoperative contracture of the vesical neck, and transurethral incision of the small prostate under constant visual control. Recently, a straight version of this guide, called probe director, was devised to conduct the newly marketed lateral firing laser probes. This probe director allows precise control of such a probe within the prostatic urethral lumen and excellent maneuverability of the probe during transurethral laser prostatectomy.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Reza S. Malek, "Transurethral optical laser knife and probe director for lateral firing laser probes", Proc. SPIE 1879, Lasers in Urology, Gynecology, and General Surgery, (28 May 1993); doi: 10.1117/12.146227; https://doi.org/10.1117/12.146227
PROCEEDINGS
4 PAGES


SHARE
KEYWORDS
Fiber lasers

Laser beam diagnostics

Laser optics

Laser energy

Prostate

Laser tissue interaction

Quartz

Back to Top